Abstract:
An input device includes an input module and a fixing module matching the input module, where the input module is a sphere having a cavity, the input module includes a signal detection unit and a signal output unit, the signal detection unit and the signal output unit are fixedly disposed in the cavity after being electrically connected, the signal detection unit is configured to generate a corresponding input signal according to a preset operation performed by a user on the input module, and the signal output unit is connected to an external terminal and configured to output the input signal to the terminal; and the fixing module is configured to fix the input device on a preset flat surface.
Abstract:
A first device acquires target object information and generates a graphic code according to the target object information and corresponding first user account information. The first device displays the graphical code on the screen so that a second device scans the graphic code and uploads the graphic code to a remote server, which extracts the target object information and the first user account information from the graphical code, carries out a commercial transfer operation on the target object information while returning numerical commercial value transfer progress information to the first device during the process of the operation. The first device then displays the progress information on the screen. Sometimes, users of the first device and the second device exchanges respective user account information of a social network application via the remote server with each other so that the two enter a chat session with each other from the respective devices.
Abstract:
A service terminal, which is communicatively coupled to a remote server, works with an offline user terminal to complete a service request initiated by a user of the user terminal. The service terminal repeatedly broadcasts a service message to neighboring user terminals until after receiving a service purchase request message wirelessly transmitted from a user terminal. The service terminal then suspends the broadcast of the service message and communicates the service purchase request to the remote server and receives a purchase confirmation message from the remote server. Next, the service terminal wirelessly transmits the purchase confirmation message back to the user terminal. From reading the purchase confirmation message, a user of the user terminal can tell whether the service purchase request has been completed successfully or not. If not, the service terminal then resumes the broadcast of the service message until after receiving another service purchase request message.